BS EN 60704-2-7-1998 测定家用和类似用途电器辐射气载噪声的试验规则.专门要求.风扇专门专门要求
时间:2024-05-19 08:05:45 来源: 标准资料网 作者：标准资料网 阅读：9662
【英文标准名称】:Testcodeforthedeterminationofairborneacousticalnoiseemittedbyhouseholdandsimilarelectricalappliances-Particularrequirements-Particularrequirementsforfans
【原文标准名称】:测定家用和类似用途电器辐射气载噪声的试验规则.专门要求.风扇专门专门要求
【标准号】:BSEN60704-2-7-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-04-15
【实施或试行日期】:1998-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;家用电器;家用设备;家用的;噪声(环境的);试验条件;声学测量;声强;位置公差;电驱动装置;风扇
【英文主题词】:
【摘要】:Replacement:Thisstandardappliestoelectricalfans(includingtheiraccessoriesandtheircomponentparts)forhouseholdandsimilaruse,designedfora.c.ord.c.supply.Motor,impellerandtheirhousing,ifany,formasingleunit.Theseparticularrequirementsapplyto-tablefans,-pedestalfans,-ceilingfans,-partitionfans.Thisstandarddoesnotapplyto-fanswhicharepartofaventilationsystem,-fansdesignedexclusivelyforindustrialpurposes,-fanswhicharepartofanappliance(forexamplecoolingfans),-fanswithadditionalfunctions(forexampleheating,humidifying).LimitationsfortheuseofthistestcodearegiveninthescopeofIEC60704-1.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;23_120
【页数】:16P;A4
【正文语种】:英语
Product Code:SAE AMSQQA250/22
Title:Aluminum Alloy, 7178-T76, Alclad Plate and Sheet, Improved Exfoliation Resistant (NONCURRENT Mar 2007)
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope: This specification covers the specific requirements for improved exfoliation resistant alclad aluminum alloy 7178-T76 sheet and -T7651plate. The general requirements are covered in AMS-QQ-A-250. The plate and sheet covered by this specification shall be an integral composite product consisting of a heat-treatable aluminum alloy (7178) core with thin layers of an aluminum alloy (7072) anodix to the core and of approximately equal thickness, bonded to both surfaces.
Rationale: This specification covers the specific requirements for improved exfoliation resistant alclad aluminum alloy 7178-T76 sheet and -T7651plate. The general requirements are covered in AMS-QQ-A-250. The plate and sheet covered by this specification shall be an integral composite product consisting of a heat-treatable aluminum alloy (7178) core with thin layers of an aluminum alloy (7072) anodix to the core and of approximately equal thickness, bonded to both surfaces.
基本信息
| 标准名称： | 辊式板材矫正机基本参数 |
| 中标分类： |
冶金 >>
冶金机械设备 >>
轧制设备 |
| 替代情况： | 被JB/T 1465.1-1999代替 |
| 发布日期： | |
| 实施日期： | 2000-03-10 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
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所属分类： 冶金 冶金机械设备 轧制设备